Optical unit for fiber optic cables

Details Optical unit for fiber optic cables Optical unit for fiber optic cables

1998-03-09

2000-03-07

Healy, Brian

Optical waveguides

Optical transmission cable

Loose tube type

385110, 385112, 385113, 385114, G02B 644

Patent

active

060350873

ABSTRACT:
An optical unit (5a, 5b) comprising a plurality of optical fibers (2) grouped together in a tube (3a, 3b) and optionally assembled into one or more ribbons inside tube. The tube (3a, 3b) has a Young's modulus less than 200 MPa and a Shore A hardness less than 90 at a temperature of approximately +20.degree. C. and a Young's modulus less than 2000 MPa at a temperature of approximately -40.degree. C. A fiber optic cable (10, 20) comprising at least one such optical unit (5a, 5b). Application of the cable to telecommunications.

REFERENCES:
patent: 4515435 (1985-05-01), Anderson
patent: 4568144 (1986-02-01), Ochini et al.
patent: 4744631 (1988-05-01), Eichenbaum et al.
patent: 5229851 (1993-07-01), Rahman
patent: 5457762 (1995-10-01), Lochkovic et al.
patent: 5751880 (1998-05-01), Gaillard

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